Alloy 304 a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel. Type 304 has a maximum carbon of 0.07% . It is the standard [18/8 stainless" that is commonly found in pans and cooking tools. Alloy 304 is the most versatile and widely used alloy in the stainless steel family. Ideal for a wide variety of home and commercial applications, Alloy 304 exhibits excellent corrosion resistance and has a high ease of fabrication, outstanding formability. The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes.
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After ten years of development, China's instrumentation industry has generally reached the international level in the mid to late 1990s, and a few products have reached or reached the current international level. Many products have independent intellectual property rights. The series of industrial automation instrumentation and control systems is relatively complete, which greatly improves the ability of the national key large-scale projects. General products, such as commonly used temperature measuring instruments, pressure measuring instruments, display instruments, traditional flow meters and simple adjustment meters, etc., domestic enterprises can master the core technology, and can upgrade and develop new products on their own. The products can meet domestic needs and have exports. .
In recent years, through independent innovation, a number of high-level scientific research and product achievements have been achieved. Mainly include chromatographic instruments, spectroscopic instruments, electrochemical instruments, research optical microscopes, scanning electron microscopes, electronic balances, centrifuges, electronic universal testing machines, ultrasonic flaw detectors, X-ray flaw detectors, electronic theodolites, and electrical measuring instruments. The technical level of some products approaches or reaches the advanced level of the current international similar products. 
Polaris Instrument Network News: China's instrumentation industry has achieved rapid development in the past decade. The scale of the industry continues to expand, with rapid growth in production, and the total industrial output value has more than tripled, with an average annual increase of 24.27%. The level of profitability has continued to increase. The total profit in 2010 was nearly 12 times that of 2000, with an average annual growth of 28.12%. The export capacity has been continuously improved and the export delivery value has tripled in the decade, with an average annual increase of 23.11%.